RO/DI Multi tank setup

[new but handy]

Buy a humidifier float valve from Home depot, they are in the central vacum section. I have my RO under the laundry room sink in my basement, then to a garabage can, then, up to my sump. I put a float valve on the garabge can and one in my sump. I used to have the RO unit under my kitchen sink but I didn't like the size of the pressure tank. Humidifier float valve is about $10 where the Kent marine one is about $30.